Inspecting The Injection Pump While Operating The Engine - Mitsubishi L3E Service Manual

FUEL INJECTION PUMP
Figure 93 Removing injection pump
90 / 155
21.2 Inspecting the injection pump
while operating the engine
Never attempt to disassemble the pump unless it is
necessary.If the pump is assumed defective, it is
recommended to replace the pump assembly.
Item
Idling speed
Exhaust
smoke color
Fuel cut-off
solenoid
Table 41 Inspection injection pump
21.3 Removal
1. Disconnect the fuel injection pipes.
2. Remove the tie-rod clip cover.
3. Remove the tie-rod clip and tie-rod.
4. Remove the injection pump assembly.
21.4 Disassembly
1. Remove the stopper plate.
2. Unscrew the delivery holder. Remove the delivery
valve and valve spring.
3. Remove the tappet roller and stopper pin.
4. Remove the tappet, plunger spring, etc.
CAUTION
a. When replacing the plunger barrel, delivery
valve, etc., do not loosen the adjusting screw and
plate of each cylinder.
b. When those parts have been replaced, it is
necessary to measure fuel injection quantity by
using the pump tester and cam box.
c. All removed parts from the pump should be
classified by cylinders and immersed in clean
fuel.
ENGLISH
FUEL SYSTEM
Inspection
procedure
Measure engine
speed
1. Quickly
accelerate
engine without
load.
2. Apply load to
Turn ignition switch
to OFF from ON.
Service Manual Mitsubishi L-Series diesel engines
Criteria
900 rpm
No remarkably
blacksmoke
exhaust
permitted.
A solenoid
acting sound.
Version 08/2004